Deterioration diagnosis system

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United States of America Patent

PATENT NO 9810743
SERIAL NO

14707245

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Abstract

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Provided is a deterioration diagnosis system which diagnoses deterioration of an N-phase rotational machine (N denotes a natural number). The deterioration diagnosis system includes a first current sensor to be attached individually to at least lead wires of (N-1)-phases in a rotational machine, the first current sensor being able to detect a current amplitude arising from a plurality of deterioration causes, and a second current sensor to be attached collectively to the lead wires of all phases in the rotational machine, the second current sensor being able to detect a current amplitude arising from a plurality of deterioration causes.

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Patent Owner(s)

  • HITACHI, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endo, Hisashi Tokyo, JP 38 215
Kikuchi, Satoshi Tokyo, JP 132 1798
Kojima, Hiroaki Tokyo, JP 81 983
Maki, Kohji Tokyo, JP 49 302
Yuda, Shinya Tokyo, JP 28 209

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